Mitral spacer

• US 9,232,999 B2
• Filed: 07/16/2013
• Issued: 01/12/2016
• Est. Priority Date: 10/26/2005
• Status: Active Grant

• Current Assignee: Cardiosolutions, Inc.
• Original Assignee: Cardiosolutions, Inc.
• Inventors: Maurer, Christopher William, Wilson, Jonathan Edward
• Primary Examiner(s): GHERBI, SUZETTE JAIME J
• Application Number:
  US13/943,170
• Publication Number:
  US 20140200657A1
• Time in Patent Office: 910 Days
• Field of Search: 623/1.36, 623 21- 219
• US Class Current: 1/1
• CPC Class Codes: A61B 2017/00243 cardiac
• CPC Class Codes: A61B 2017/0441 the shaft being a rigid coil or spiral
• CPC Class Codes: A61B 2017/048 for reducing heart wall tension, e.g. sutures with a pad on each extremity
• CPC Class Codes: A61F 2/246 Devices for obstructing a leak through a native valve in a closed condition

Abstract

A heart valve implant may include a shaft and an anchor configured to be coupled to an end of the shaft. A spacer may be coupled to a portion of the shaft and comprise a plurality of individual segments including a first and at least a second individual segment. The first segment may be coupled to the shaft. The second segment may be coupled to at least a portion of an exterior surface of the first segment and may have at least one cross-section dimension which is greater than an internal cross-sectional dimension of a delivery lumen. Additional segments may be coupled to an inner, adjacent segment. The segments may include a collapsible body portion to facilitate percutaneously delivery through a lumen. The segments may define an outer surface of the spacer configured to interact with at least a portion of at least one cusp of a heart valve to at least partially restrict a flow of blood through the heart valve in a closed position.

Claims

1. A heart valve implant comprising:

a shaft extending generally along a longitudinal axis of said heart valve implant;

a spacer configured to interact with at least a portion of at least one cusp of a patient'"'"'s heart valve to at least partially restrict a flow of blood through said heart valve in a closed position, said spacer comprising at least a first segment configured to be coupled to said shaft while disposed within a patient'"'"'s heart;

a fastener comprising at least one detent configured to couple said shaft with said at least one segment of the spacer; and

at least one anchor configured to be coupled to a first end region of said shaft.

2. A heart valve implant according to claim 1, wherein said at least one detent comprises a resilient detent configured to resiliently deform and at least partially recover.

3. A heart valve implant according to claim 1, wherein said at least one detent comprises a resilient detent configured to resiliently deform and at least partially recover.

4. A heart valve implant according to claim 2, wherein said at least one detent comprises a spring-biased detent.

5. A heart valve implant according to claim 2, wherein said at least one detent comprises a substantially solid detent.

6. A heart valve implant according to claim 1, wherein said spacer further comprises at least a second segment configured to be coupled to at least a portion of an outer surface of said first segment.

7. A heart valve implant according to claim 5, wherein at least one of said plurality of individual segments includes a fastener for coupling with an adjacent segment.

8. A heart valve implant according to claim 1, wherein said at least said first segment comprises an expandable portion.

9. A heart valve implant according to claim 7, wherein said expandable portion comprises an inflatable bladder.

10. A heart valve implant according to claim 7, wherein said expandable portion comprises a shape memory material configured to recoverably deform.

11. A heart valve implant system comprising:

a catheter including a lumen; and

a heart valve implant comprising;

a shaft extending generally along a longitudinal axis of said heart valve implant;

a spacer configured to interact with at least a portion of at least one cusp of a patient'"'"'s heart valve to at least partially restrict a flow of blood through said heart valve in a closed position, said spacer comprising at least one segment configured to be coupled to said shaft; and

at least one anchor configured to be coupled to a first end region of said shaft.

12. A heart valve implant system according to claim 11, wherein said heart valve implant further comprises a fastener configured to couple said shaft with said at least one segment.

13. A heart valve implant system according to claim 12, wherein said fastener includes at least one detent.